Deepened Pain was also an exclusive skill of the same category. It was considered an elite combat-class exclusive skill that had horrific lethality in combat. But for Genius, it was obviously useless.
Genius' physical body might obtain offensive capabilities as it continued to evolve, but it was unrealistic if Genius had to injure feys of the same grade.
Genius was all in all a housekeeping or domestic fey.
As for the Tool Transformation skill, Lin Yuan also had a headache. It was a skill that people would either love or hate.
Only gamblers would prefer to use Tool Transformation as entertainment. According to different fey species, the Tool Transformation would be slightly different.
However, it still couldn't lower the unpredictability of Tool Transformation.
